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What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:13 The demonstration
0:35 Understanding the problem
1:04 Where do we draw the Free Body Diagram
2:06 Summing the forces
3:04 What happens at the minimum angular speed
3:53 Why the force of tension is zero
4:41 Solving the problem
Next Video: The Right Hand Rule for Angular Velocity and Angular Displacement
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.

Name: Minimum Speed for Water in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 2017-10-23 Submitter: Flipping Physics
What is the minimum angular speed necessary to keep water in a vertically revolving bucket? The rope radius is 0.77 m.
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:13 The demonstration
0:35 Understanding the problem
1:04 Where do we draw the Free Body Diagram
2:06 Summing the forces
3:04 What happens at the minimum angular speed
3:53 Why the force of tension is zero
4:41 Solving the problem
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.
Minimum Speed for Water in a Bucket Revolving in a Vertical Circle

Analyzing the forces acting on a bucket of water which is revolving in a vertical circle.
Want Lecture Notes? This is an AP Physics 1 topic.
A big thank you to Mr. Becke for being a guest in today’s video!
Content Times:
0:11 The demonstration
0:24 Drawing four Free Body Diagrams
1:30 Summing the forces with the bucket at the bottom
2:27 What is the centripetal force?
3:28 Why the Force Normal greater than the Force of Gravity with Mr. Becke!
Next Video: Minimum Speed for Water in a Bucket Revolving in a Vertical Circle
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.

Name: Analyzing Water in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 2017-10-15 Submitter: Flipping Physics
Analyzing the forces acting on a bucket of water which is revolving in a vertical circle.
Want Lecture Notes? This is an AP Physics 1 topic.
A big thank you to Mr. Becke for being a guest in today’s video!
Content Times:
0:11 The demonstration
0:24 Drawing four Free Body Diagrams
1:30 Summing the forces with the bucket at the bottom
2:27 What is the centripetal force?
3:28 Why the Force Normal greater than the Force of Gravity with Mr. Becke!
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.
Analyzing Water in a Bucket Revolving in a Vertical Circle

Yes, water stays in the bucket. Would you like to know why? Watch the video and learn!
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:14 The demonstration
0:52 Why does water flow out of a bucket?
1:40 Inertia!
2:38 Visualizing why
Next Video: Analyzing Water in a Bucket Revolving in a Vertical Circle
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Determining the Force Normal on a Toy Car moving up a Curved Hill
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.

Name: Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle Category: Rotational Motion Date Added: 2017-10-08 Submitter: Flipping Physics
Yes, water stays in the bucket. Would you like to know why? Watch the video and learn!
Want Lecture Notes? This is an AP Physics 1 topic.
Content Times:
0:14 The demonstration
0:52 Why does water flow out of a bucket?
1:40 Inertia!
2:38 Visualizing why
Multilingual? Please help translate Flipping Physics videos!
Previous Video: Determining the Force Normal on a Toy Car moving up a Curved Hill
Please support me on Patreon!
Thank you to Aarti Sangwan and Christopher Becke for being my Quality Control Team for this video.
Demonstrating Why Water Stays in a Bucket Revolving in a Vertical Circle

Can you drop a ball from a moving vehicle and get it to land in a bucket? You can using Physics! In this video we solve an introductory projectile motion problem involving an initial horizontal velocity and predict how far in front of the bucket to drop the ball.
Content Times:
0:17 Reading the problem.
0:41 Visualizing the problem.
1:18 Translating the problem.
2:31 Converting from miles per hour to meters per second.
3:10 Two common mistakes about projectile motion givens.
4:29 Beginning to solve the problem.
5:13 Solving for the change in time in the y-direction.
6:22 Solving for the displacement in the x-direction.
7:29 Video proof that it works.
8:14 Air resistance?
9:09 In our next lesson...
[url="http://www.flippingphysics.com/projectile-motion-problem-part-1-of-2.html"]Want Lecture Notes?[/url]
Next Video: [url="http://www.flippingphysics.com/projectile-motion-problem-part-2-of-2.html"](part 2 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity[/url]
[url="http://www.flippingphysics.com/how-many.html"]How Many Attempts did it Really Take?[/url]
[url="http://www.flippingphysics.com/the-euler-method.html"]A Brief Look at the Force of Drag using Numerical Modeling (or The Euler Method)[/url]
Previous Video: [url="http://www.flippingphysics.com/projectile-motion.html"]Introduction to Projectile Motion[/url]
[url="http://www.flippingphysics.com/give.html"]1¢/minute[/url]

Name: (Part 1 of 2) An Introductory Projectile Motion Problem with an Initial Horizontal Velocity
Category: Kinematics
Date Added: 22 May 2014 - 04:49 PM
Submitter: Flipping Physics
Short Description: None Provided
Can you drop a ball from a moving vehicle and get it to land in a bucket? You can using Physics! In this video we solve an introductory projectile motion problem involving an initial horizontal velocity and predict how far in front of the bucket to drop the ball.
Content Times:
0:17 Reading the problem.
0:41 Visualizing the problem.
1:18 Translating the problem.
2:31 Converting from miles per hour to meters per second.
3:10 Two common mistakes about projectile motion givens.
4:29 Beginning to solve the problem.
5:13 Solving for the change in time in the y-direction.
6:22 Solving for the displacement in the x-direction.
7:29 Video proof that it works.
8:14 Air resistance?
9:09 In our next lesson...
View Video

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